package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 分类管理
 */
@Slf4j
@RestController
@RequestMapping("category")
public class CategoryController {

    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     */
    @PostMapping
    public R<String> save(@RequestBody Category category) {
        categoryService.save(category);
        return R.success("添加分类成功");
    }

    /**
     * 分页查询
     */
    @GetMapping("page")
    public R<Page<Category>> page(Integer page, Integer pageSize) {
        //分页构造器
        Page<Category> pageInfo = new Page<>(page, pageSize);
        //条件构造器
        QueryWrapper<Category> queryWrapper = new QueryWrapper<>();
        //添加排序条件，根据sort进行排序
        queryWrapper.orderByAsc("sort");
        //分页查询
        categoryService.page(pageInfo, queryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据id删除分类
     */
    @DeleteMapping
    public R<String> delete(Long id) {
        //categoryService.removeById(id);
        categoryService.remove(id);
        return R.success("删除分类成功");
    }

    /**
     * 根据id修改分类信息
     */
    @PutMapping
    public R<String> update(@RequestBody Category category) {
        categoryService.updateById(category);
        return R.success("更新分类信息成功");
    }

    /**
     * 根据条件查询分类数据
     */
    @GetMapping("list")
    public R<List<Category>> list(Integer type) {
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加条件
        queryWrapper.eq(type != null, Category::getType, type);
        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort);
        List<Category> list = categoryService.list(queryWrapper);
        return R.success(list);
    }

}
